How to send submission(Zoo) using ajax?

Question

Joomla

I am doing an extended functionality of reviews (you need to add a photo and some more jokes).
In general, you need to send the Submission form of the material from the page of the material itself, and not the menu item (as is standardly implemented)

as I came up with to do this
1) create a menu item with submission
2) on the material page I hang a script that loads this form by clicking (jquery Load) on page of the material
3) the required fields are automatically filled in
4) I send the form

What problems?
1) if I send using standard means, then it redirects to another page (as specified in the menu settings),
so I want to send using AJAX - but it gives an Invalid Token error (it seems that I am preparing the data for sending incorrectly)
2) when sending material - Primary Category is saved, but Category - No!